Finding the Fourth Proportional to 275,507.72, 380,239.06 and 153,027.62
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Solution
The fourth proportional to 275,507.72, 380,239.06 and 153,027.62 is: 211,199.45
Step by Step Solution
- Step 1: Write the proportion equation
275,507.72 : 380,239.06 = 153,027.62 : x - Step 2: Convert to fraction form
275,507.72/380,239.06 = 153,027.62/x - Step 3: Cross multiply
275,507.72x = 380,239.06 × 153,027.62 - Step 4: Simplify right side
275,507.72x = 58,187,078,382.84 - Step 5: Solve for x
x = 58,187,078,382.84/275,507.72 - Step 6: Final answer
x = 211,199.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.